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Finding the Third Proportional to 39,615 and 60,153

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Solution

The third proportional to 39,615 and 60,153 is: 91,338.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,615 : 60,153 = 60,153 : x
  2. Step 2: Convert to fraction form
    39,615/60,153 = 60,153/x
  3. Step 3: Cross multiply
    39,615x = 60,153 × 60,153
  4. Step 4: Simplify right side
    39,615x = 3,618,383,409
  5. Step 5: Solve for x
    x = 3,618,383,409/39,615
  6. Step 6: Final answer
    x = 91,338.72

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.